Slicing Apparatus

Abstract

A slicing apparatus for slicing food products into slices comprises a feeding unit configured to feed products along a feeding direction into a cutting region in which a blade for slicing the products into slices is arranged, wherein the feeding unit comprises a moving device that is configured to move the products into the cutting region, and wherein the moving device comprises a transporting member that is configured to apply a pressure onto an upper product side while the product is fed into the cutting region.

Claims

1. Slicing apparatus for slicing food products into slices, the slicing apparatus comprising a feeding unit configured to feed products along a feeding direction into a cutting region in which a blade for slicing the products into slices is arranged, wherein the feeding unit comprises a moving device that is configured to move the products into the cutting region, and wherein the moving device comprises a transporting member that is configured to apply a pressure onto an upper product side while the product is fed into the cutting region.

2. Slicing apparatus according to claim 1, wherein the transporting member comprises at least one rotatable element that is rotatable in the feeding direction.

3. Slicing apparatus according to claim 2, wherein the at least one rotatable element is driven.

4. Slicing apparatus according to claim 2, wherein the at least one rotatable element is driven synchronously with an endlessly circulating belt that forms a transport surface for the products to be fed into the cutting region.

5. Slicing apparatus according to claim 2, wherein the rotatable element comprises at least one of a structured or toothed surface to engage with the upper product side while moving the product towards the cutting region.

6. Slicing apparatus according to claim 1, wherein the transporting member comprises at least one of: at least one roller that is configured to rotate along the feeding direction or at least one endlessly circulating belt engaging with the upper product side while feeding the product into the cutting region.

7. Slicing apparatus according to claim 2, wherein the at least one rotatable element is movable perpendicularly to the feeding direction for variating the height of the at least one rotatable element relative to a transport surface of the feeding unit onto which the products are fed into the cutting region.

8. Slicing apparatus according to claim 2, wherein the at least one rotatable element is displaceable by a product that is moved in the feeding direction against the pressure the at least one rotatable element transmits towards a transport surface of the feeding unit.

9. Slicing apparatus according to claim 2, wherein a controller of the slicing apparatus or the feeding unit is configured to adjust the at least one rotatable element to a height corresponding to the size of a product to be transferred to the feeding unit.

10. Slicing apparatus according to claim 9, wherein a signal of a measuring device configured to infer the product dimension is used to adjust the height of the at least one rotatable element.

11. Slicing apparatus according to claim 1, wherein a controller of the slicing apparatus is configured to control the pressure that the transporting member applies onto the product.

12. Slicing apparatus according to claim 1, wherein the moving device comprises at least two endlessly circulating conveyor belts for moving the products into the cutting region, the conveyor belts being arranged consecutively in the feeding direction, wherein each of the conveyor belts forms a respective transport surface for the products, such that a product that is fed into the cutting region is transferred from a first endlessly circulating conveyor belt to a second endlessly circulating conveyor belt in the feeding unit, and wherein the transporting member comprises two rotatable elements with each of the rotatable elements corresponding to one of the circulating conveyor belts, such that the products may be clamped between a respective rotatable element and the corresponding conveyor belt while being fed into the cutting region.

13. Slicing apparatus for slicing food products into slices, the slicing apparatus comprising a feeding unit configured to feed products along a feeding direction into a cutting region in which a blade for slicing the products into slices is arranged, wherein the feeding unit comprises a trimming cutter to cut off a part of the product during the feeding into the cutting region, wherein the trimming cutter is arranged to cut the products along the feeding direction.

14. Slicing apparatus according to claim 13, wherein the trimming cutter is arranged to cut product into several parts that are fed into the cutting region

15. Slicing apparatus according to claim 13, wherein the trimming device is arranged to cut off a part of the product that is not suitable as a part of the slices that are produced.

16. Slicing apparatus according to claim 13, wherein the trimming device is adjustable perpendicularly to the feeding direction and in a plane parallel to the feeding direction.

17. Slicing apparatus according to claim 13, wherein a selection gap for sorting out a part of the product is formed in the feeding unit, wherein the selection gap is arranged subsequently to the trimming cutter.

18. Slicing apparatus according to claim 17, wherein the feeding unit comprises a moving device with a first conveyor belt and a second conveyor belt, wherein a belt transition between the first conveyor belt and the second conveyor belt forms the selection gap.

19. Slicing apparatus according to claim 17, wherein the slicing apparatus comprises a scanning device to infer information concerning the products that are fed into the cutting region, wherein the scanning device is arranged at the selection gap.

20. Slicing apparatus according to claim 19, wherein the scanning device comprises at least a first camera and a second camera or a first light emitting diode (LED) and a second light emitting diode (LED), wherein the first camera or the first light emitting diode (LED) is arranged below the selection gap and wherein the second camera or the second light emitting diode (LED) is arranged above the selection gap.

21. Slicing apparatus according to claim 20, wherein at least one of a further camera or a further light emitting diode (LED) is provided to analyze at least one of a front end of the product, a rear end of the product or a contour of the product.

Description

[0088] Exemplary embodiments and functions of the present disclosure are described hereinafter in conjunction with the following drawings, showing:

[0089] FIGS. 1A and 1B a respective schematic depiction of a slicing apparatus with a loading apparatus, the loading apparatus being arranged in an operation position and in a loading position, respectively,

[0090] FIGS. 2A and 2B a respective schematic depiction of the loading apparatus as viewed from an entrance side of the loading apparatus,

[0091] FIGS. 3A and 3B a respective schematic depiction of a further embodiment of the loading apparatus as viewed from the entrance side,

[0092] FIG. 4 a perspective depiction of an entraining device that may be used in conjunction with the loading apparatus,

[0093] FIGS. 5A and 5B a respective schematic depiction of a blocking member of the loading apparatus as viewed from an exit side of the loading apparatus,

[0094] FIG. 6 a schematic depiction of a further embodiment of the loading apparatus as viewed from the entrance side,

[0095] FIG. 7 a perspective depiction of a pressing member of the slicing apparatus, and

[0096] FIG. 8A to 8E respective depictions of a further slicing apparatus with a loading apparatus, from both sides, from above, from the rear and from the front.

[0097] FIG. 1A shows a slicing apparatus 15 with a feeding unit 21 onto which three abutting products 13 are loaded and fed to a cutting region 23. In the cutting region 23, into which the products 13 are advanced over a cutting edge 105, a blade 83 is arranged and cuts the products 13 into slices 25. The feeding unit 21 comprises a conveying means 95, which is configured as a belt conveyor that endlessly circulates between two pulleys 97 and transports the products 13 in a feeding direction F towards the cutting region 23. The feeding direction F is inclined to the horizontal at an angle of approximately 20° and oriented perpendicular to a slicing plane that is defined by the motions of the blade 83 during the cutting process. For example, the blade 83 may be rotating in the cutting plane. In particular, the slicing apparatus 15 may be configured as a high-speed slicer.

[0098] The slices 25 that have been cut off the products 13 are collected at a collecting unit 99, at which a portion 107 comprising several stacked or shingled slices is formed. The collecting unit 99 comprises a conveying means 100 that is configured as a belt conveyor onto which the slices 25 fall. The conveying means 100 is movable between two pulleys 97, such that a complete portion 107 may be automatically transferred to further processing steps, e.g. to a packaging machine (not shown in the Figure). Further, the conveying means 100 may be actuated during the collection of the portion 107, e.g. in order to arrange the falling slices 25 in a shingled portion 107.

[0099] By feeding the products 13 in the inclined feeding direction F to the cutting region 23, the arrangement of the slices 25 to portions 107 may be improved since the fall of the slices 25 may be better controlled. However, in order to stabilize the products 13 during the cutting process, the slicing apparatus 15 comprises a pressing member 87 that presses the products 13 in a front part against the cutting edge 105. This enables to hold the products 13 while the blade 83 cuts off a slice to prevent the products 13 from moving due to the forces transmitted by the blade 83. An embodiment of the pressing member 87 is shown in FIG. 7.

[0100] As shown in FIG. 7, the pressing member 87 may comprise a pressing roll 89 that is arranged above the cutting edge 105 in order to press products 13 conveyed by the conveying means 95 against the cutting edge 105. The pressing role 89 is freely rotatable around an axis 123 and connected to a frame 127. The frame 127 is suspended at its rear end 141 from a structure 139 with two respective guiding arms 133, which are pivotable around an axis 131 that is fixed at the structure 129. The rear end 141 of the frame 127 is hinged to the guiding arms 133, enabling the frame 127 to pivot around the rear end 141. Further, a middle section 143 of the frame 27 is rotatable around an axis 124 that is suspended from the structure 139 with an arm 125. The arm 125 is pivotable around an axis 129.

[0101] In order to press a product 13 towards the cutting edge 105, the pressing roll 89 is movable perpendicularly to the feeding direction F as indicated by the arrow A. To move or adjust the pressing role 89, the rear end 141 of the frame 127 may be actuated by a driving rod 135 that is connected to the rear end 141 via a connection 137. The connection 137 is rigidly fixed at the frame 127 but pivotable with respect to the driving rod 135. When the driving rod 135 is extended, the rear end 141 of the frame 127 is moved and guided along a circle around the axis 131 by the guiding arms 133. Further, the middle section 143 of the frame 127 rotates around the axis 124 during the movement, while the axis 124 is additionally pivoted around the axis 129.

[0102] The length of the guiding arms 133, the length of the arm 125 and the distance between the rear end 141 and the middle section 143 of the frame 127, respectively the distance between the rear end 141 and the axis 124, is chosen such that the pressing member 87 is configured as a lambda kinematic 91. Thus, the pressing roll 89 moves linearly and perpendicularly to the feeding direction F and the pressing roll 89 always maintains the same distance from the blade 83, in particular from a cutting plane defined by the movement of the blade 83, independent of the position of the pressing member 87. This enables to process a variety of products 13 and in particular natural food products 13 with varying sizes or heights while always applying an optimum pressure with the pressing member 87 to stabilize the products 13 while cutting off slices 25. In particular, the pressing member 87 may be used in conjunction with a slicing apparatus 15 used for cutting bacon loafs into slices, in particular North American streaky bacon and/or turkey bacon, to absorb the strong forces generated during the cutting.

[0103] In addition, the axis 124 is connected to a gear wheel 120 that meshes with a gear wheel 121 connected to and rotatable around the axis 123. The gear wheel 120 meshes with a further gear wheel that is arranged in axial alignment with the axis 129 but not visible in FIG. 7. The radius of the further gear wheel matches the length of the arm 125, such that the gear wheel 120, the gear wheel 121 and the further gear wheel always remain in mesh during the movement of the pressing member 87 and independent of the position of the pressing member 87.

[0104] Referring to FIG. 1A again, it is shown that a loading apparatus 11 is connected to the slicing apparatus 15 and its feeding unit 21 at the rear end of the slicing apparatus 15 regarding the feeding direction F. The loading apparatus 11 comprises a magazine unit 17 that forms a store 31 for a plurality of products 13. The products 13 stored in the magazine unit 17 may be lifted to a transferring height H by a conveying means 19 that endlessly circulates along a running direction R (refer also to FIGS. 2A to 3B and 6 for the conveying means 19).

[0105] Above a product 13 lifted to the transferring height H, an entraining device 55 is arranged that is configured to transfer the product 13 to the feeding unit 21 in a transferring direction T, which matches the feeding direction F. Hence, the products 13 stored in the magazine unit 17 can automatically be lifted and transferred to the feeding unit 21, such that products 13 do not need to be loaded manually to the feeding unit 21. In particular, this enables an operator supervising the product processing to load products 13 onto the loading apparatus 11 at a comfortable height without having to lift the products 13 to the feeding unit 21. Further, with the possibility to store a plurality of products 13 in the magazine unit 17, the operator may handle several slicing apparatuses 15 or fulfil additional tasks without the risk of a break in the product processing due to the slicing apparatus 15 running out of supplied products.

[0106] From the conveying means 19, which is not visible in FIGS. 1A and 1B but shown in FIGS. 2A to 3B and FIG. 6, several product support surfaces 27 protrude that are oriented essentially perpendicular to the running direction R and spaced apart from each other. The products 13 stored in the magazine unit 17 are loaded onto a respective product support surface 27, such that a product support surface 27 and an adjacent product support surface 27 form a compartment 117 for a product 13. Thus, the store 31 comprises several compartments 117 to store a plurality of products 13 that can be lifted simultaneously. In addition, the loading apparatus 11 comprises a blocking member 51 that prevents products 13 that are below the transferring height H from moving in the transferring direction T, thus closing the compartments 117 below the transferring height H at an exit side 41 of the loading apparatus 11 via which products 13 lifted to the transferring height H are transferred to the feeding unit 21.

[0107] To automatically transfer products 13 that have been lifted to the transferring height H to the feeding unit 21 of the slicing apparatus 15, the entraining device 52 comprises a driving member 53. The driving member 53 comprises an endless member 61, e.g. an endless belt, a toothed belt, a link belt or a chain, that endlessly circulates between a front deflection 63 and a rear deflection 65 along the transferring direction T. Hence, the driving member 53 may be configured as a linear drive, in particular a toothed belt drive. From the endless member 61, two entrainers 55 protrude that each comprise a respective pushing plane 67 oriented essentially perpendicular to the endless member 61 and configured to engage with a rear end 57 of the products 13. Thus, by the movement of the endless member 61 in the transferring direction T, the product 13 at the transferring height H is pushed to the feeding unit 21 by the engaging entrainer 55. Further, the entrainers 55 are arranged such that whenever one entrainer 55 reaches the front deflection 63 and completes the transfer of the respective product 13 to the feeding unit 21, the other entrainer 55 arrives at the rear deflection 65 and immediately is in the position to transfer a product 13 subsequently lifted to the transferring height H by the loading apparatus 11.

[0108] In order to accomplish an immediate and automatic transfer of a product 13 that has been lifted to the transferring height H, the entraining device 52 and/or the loading apparatus 11 may comprise a sensor 77 that is configured to detect a product 13 at the transferring height H (see also FIGS. 2A to 3B and 6). The sensor 77 can be connected to a controller 81 of the entraining device 52 that is configured to trigger the entraining device 52 to move a product 13 in the transferring direction T in response to a signal of the sensor 77 indicating that the product 13 has been supplied. The controller 81 may also be connected to a controller of the slicing apparatus 15 in order to synchronize the transfer of products 13 from the loading apparatus 11 to the feeding unit 21 with the operation of the slicing apparatus 15. For example, an optical sensor, a super-sonic sensor and/or a mechanical contact sensor may be used as the sensor 77 in order to detect the product 13 at the transferring height H. Further, a mechanical contact sensor may be integrated into the entrainer 55 to detect a contact between the entrainer 55 and the rear end 57 of the product 13. This enables to also detect when a product 13 has been transferred to the feeding unit 21 indicated by a missing contact to the respective entrainer 55. For example, this information may be used as a start signal to lift the subsequent product 13 to the transferring height H.

[0109] While the loading apparatus 11 is shown in its operation position O in FIG. 1A in which the product support surfaces 27 are arranged parallel to the feeding direction F, the loading apparatus 11 is movable to a loading position L in which products 13 may be loaded onto the loading apparatus 11. To move the loading apparatus 13 from the operation position O to the loading position L, a frame 85 of the loading apparatus 11 may be pivoted around a switching axis S. As can be seen in FIG. 1B, the product support surfaces 27 are oriented horizontally in the loading position L and products 13 may be loaded to the loading apparatus 11 via an entrance side 39 that opposes the exit side 41 regarding the transferring direction T. Thus, the entrance side 39 constitutes a handling side for an operator to supply products 13 to the slicing apparatus 15.

[0110] Besides a manual loading of the loading apparatus 11, automatic and simultaneous loading of a plurality of products 13 onto the loading apparatus 11 may also be provided. E.g., products 13 may be supplied by a wagon that features a similar division into compartments as the magazine unit 17, such that the products 13 may be transferred automatically to the loading apparatus 11 in its loading position L. Further, the loading apparatus 11 may comprise a weighing device in order to determine the weight of products 13 that have been loaded onto the loading apparatus 11. For example, the weighing device may provide a signal to stop the product loading once the necessary weight of a certain batch has been reached to prevent unnecessary loading of products 13.

[0111] The loading apparatus 11 is configured as a separate unit and comprises a base 103 that is movable relative to a base 101 of the slicing apparatus 15. Thus, the loading apparatus 11 may be moved relatively to the slicing apparatus 15, e.g. to clean the loading apparatus 11 or to provide access to components of the slicing apparatus 15 and in particular the feeding unit 21, e.g. for cleaning or maintenance work. To ease the moving of the loading apparatus 11, the loading apparatus 11 may also comprise a trolley or carriage with wheels as a base 103.

[0112] FIGS. 2A and 2B depict a first embodiment of the loading apparatus 11 as viewed from the entrance side 39 from which products 13 may be loaded. In this embodiment, a conveying means 19 and a further conveying means 33 are provided that each comprise a respective endless member 29. The endless members 29 endlessly circulate along the running direction R in a counter-rotating way between a lower deflection 80 and an upper deflection 79. Thus, respective first runs 113 of the conveying means 19 and the further conveying means 33 that are opposing each other move upwards to form a lifting area 111 of the magazine unit 17.

[0113] Several product support surfaces 27 protrude essentially perpendicular to the running direction R from the endless member 29 of the conveying means 19. The product support surfaces 27 may be directly or indirectly fastened to the endless member 29, which may in particular be an endless belt, a link belt or a chain. The product support surfaces 27 may be detachably connected to the endless member 29, such that product support surfaces 27 optimally adjusted to a certain type of products 13 may be used. For example, product support surfaces 27 of different sizes and/or surface structures may be connected to the endless member 29 in dependence on the respective products 13 to be processed.

[0114] Similarly, the further conveying means 33 comprises several further product support surfaces 35 that protrude essentially perpendicular to the running direction R from the respective endless member 29 and that can be detachably mounted. The number of product support surfaces 27 equals the number of further product support surfaces 35. The product support surfaces 27 and the further product support surfaces 35 that are arranged on the respective first runs 113 of the conveying means 19 and the further conveying means 33 oppose each other and are located at the same height regarding the running direction R. Thus, the product support surfaces 27 and the further product support surfaces 35 point towards each other in the lifting area 111 of the magazine unit 17.

[0115] The product support surfaces 27 arranged at the first run 113 jointly form a respective product support 37 with a corresponding further product support surface 35, the opposing further product support surface 35, in the lifting area 111. As can be seen in FIG. 2B, products 13 may be loaded onto the respective product supports 27 with the bottom side of the products 13 partly being supported by the product support surface 27 and by the corresponding further product support surface 35. Further, adjacent product supports 37 and the inner runs 113 of the endless members 29 form the compartments 117 of the store 31 for the products 13, wherein the compartments 117 below the transferring height H are closed by the blocking member 51 (see FIGS. 1A, 1B, 5A and 5B). The uppermost compartment 117 at the transferring height H is only formed by the uppermost product support 37 and the opposing runs 113, such that products 13 at the transferring height H may be transferred to the feeding unit 21.

[0116] The endless member 29 of the conveying means 19 and the endless number 29 of the further conveying means 33 circulate along the running direction R in a counter-rotating way and the respective inner runs 113 that are opposing each other move upwards to lift the products 13 that are loaded onto the product supports 37. Accordingly, the respective outer runs 115 of the endless members 29 move downwards towards the lower deflection 80 to form a subsequent product support 37 once the product 13 at the transferring height H has been transferred to the feeding unit 21 and the subsequent product 13 is lifted to the transferring height. For each of the conveying means 19 and the further conveying means 33, a corresponding driving means 43 respectively 45 is provided. In the schematic depictions, the driving means 43 and 45 drive the lower deflections 80, while it is also possible to drive the upper deflections 79. The driving means 43 and 45 are operated in a synchronous way such that both endless members 29 move at the same speed and the product support surfaces 27 and the further product support surfaces 35 jointly forming a product support 37 always maintain at the same height relative to each other to lift the products 13 to the transferring height H. Alternatively, a common drive for the conveying means 19 and the further conveying means 33 may be provided with a clutch ensuring a synchronous movement.

[0117] In the upper part of the loading apparatus 11, a pressing member 47 is arranged that is configured to push a product 13 that is lifted to the transferring height H against a lateral border 49 of the loading apparatus 11. In particular, the pressing member 47 may engage at a front end of the product 13 to prevent the product 13 from sliding in the transferring direction T. The pressing member 47 may be movable, e.g. liftable, to unblock a path of the product support surfaces 27 from the transferring height H onwards around the upper deflection 79. Further, the pressing member 47 may be arranged such that the path of the product support surfaces 27 does not intersect with the pressing member 47 independent of its position.

[0118] Further, a sensor 77 is provided to detect the product 13 that has been lifted to the transferring height H. In the embodiment shown in FIGS. 2A and 2B, no entraining device 52 is provided such that a product 13 lifted to the transferring height H may, e.g., be pushed to the feeding unit 21 manually. Alternatively, a further means for automatic transfer of the product 13 to the feeding unit 21 may be provided. For example, the slicing apparatus 15 may comprise a product gripper that is movable as far as the entrance side 39 of the loading apparatus 11 to grip a product 13 at the transferring height H, transfer the product 13 to the feeding unit 21 and/or guide the product 13 towards the cutting region 23. For example, such a product gripper may be moved upon receiving a signal from the sensor 77.

[0119] Alternatively or in addition to the pressing member 47, the blocking member 51 may be movable between a blocking position P1 and a release position P2 in order to prevent an unintentional sliding of a product 13 lifted to the transferring height towards the feeding unit 21, wherein a motion of a product 13 at the transferring height H may be prevented in the blocking position P1 and enabled in the release position P2 as depicted in FIGS. 5A and 5B. FIG. 5A shows a schematic view of the loading apparatus 11 from the exit side 41. The blocking member 51 is arranged as a closed wall or sheet metal up to the transferring height H, where the blocking member 51 comprises a barrier 54. The barrier 54 is movable perpendicularly to the transferring direction T along two rods 119 as indicated by an arrow A. In the blocking position P1, the barrier 54 is positioned in front of the lower part of the product 13 that has been lifted to the transferring height H, thus blocking a movement of the product 13 in the transferring direction T. However, the barrier 54 may be lifted to the release position P2 shown in the FIG. 5B to open the passage for the product 13 to the feeding unit 21. Hence, after transferring the blocking member 51 to the release position P2 by lifting the barrier 54, the product 13 located at the transferring height H may be transferred to the feeding unit 21. After the product transfer, the blocking member 51 may be reset to its blocking position P1 before lifting the subsequent product 13 to the transferring height H.

[0120] FIGS. 3A and 3B schematically illustrate a further embodiment of the loading apparatus 11 as viewed from the entrance side 39. Similarly to the loading apparatus 11 shown in FIGS. 1A and 1B, an entraining device 52 is arranged above the magazine unit 17 and configured to automatically transfer products 13 at the transferring height H to the feeding unit 21. The entraining device 52 is fastened to the frame 85 of the loading apparatus 11 by a fastening means 109 and includes a sensor 77 that is configured to detect a product 13 at the transferring height H.

[0121] The sensor 77 is connected to a controller 81 of the entraining device 52 that is configured to trigger the entraining device 52 to transfer a product 13 to the feeding device 21 of the slicing apparatus 15 upon receiving a signal from the sensor 77 confirming that a product 13 has been lifted to the transferring height H.

[0122] As can be seen in FIG. 3A, the entraining device 52 comprises an entrainer 55 that protrudes from an endless member 61. The entrainer 55 comprises a flat pushing surface 67 that engages with the rear end 57 of the product 13 that has been lifted to the transferring height H in order to push the product 13 towards the feeding unit 21 in the transferring direction T. In addition, an alignment means 59 is integrated into the entrainer 55 that is configured to align the product 13 at the rear end 57 transversely to the transferring direction T. In order to accomplish this, the alignment means comprises two engagement members 71 that engage with the rear end 57 of the product 13. By these engagement members 71, the product 13 may be aligned transversely to the transferring direction T while the product 13 is moved by the entrainer 55 in the transferring direction T.

[0123] A possible embodiment of the entraining device 52 is shown in detail in FIG. 4. In this embodiment, the endless member 61 of the entraining device 52, which endlessly runs in the transferring direction T between a front deflection 63 and a rear deflection 65, is configured as a link belt from which the entrainer 55 protrudes. The alignment means 59 is drivable through a rack and pinion gear 69 and, thus, through the motion of the entrainer 55 in the transferring direction T.

[0124] The engagement members 71 are configured as two gear wheels that are driven by a gear wheel 73 that meshes with a rack 75 while the entrainer 55 moves in the transferring direction T. Thus, through the motion of the entrainer 55, the engagement members 71 may be rotated and, by the contact with the rear end 57 of the product 13, transfer a force that is directed transversely to the transferring direction T to the rear end 57 of the product 13. Alternatively, the engagement members 71 may, e.g., be configured as an endless belt that engages with the rear end 57 of the product 13 and that is drivable through the rack and pinion gear 69. In general, also a separate driving means to drive the alignment member 59 may be provided.

[0125] Since the alignment means 59 engages with the product 13 during the movement of the product 13 in the transferring direction T, frictional forces between the bottom side of the product 13 and the product support 37 are reduced. Thus, the entire product 13 may be aligned by supplying only minor forces to the rear end 57 and damages of the product 13 due to the aligning may be prevented. In particular, the product 13 may be moved against a lateral border of the feeding unit 21 to ensure that every product 13 is fed to the cutting region 23 and cut at a correct lateral position.

[0126] As further shown in FIG. 3B, the conveying means 19 and 33 of the loading apparatus 11 and the entraining device 52 are arranged relative to each other such that the product support surfaces 27 and the further product support surfaces 35 can move past the entraining device 52 when moving onwards from the transferring height H around the upper deflections 79 in any position of the entraining device 52. As illustrated by the path W an outer edge of the product support surfaces 27 describes when moving onwards from the transferring height H, the entrainer 55 protrudes from the endless member 61 such that it is arranged between the conveying means 19 and the further conveying means 33 and such that the path W does not intersect with the entrainer 55. Similarly, a path of the outer edges of the further product support surfaces 35 does not intersect with the entrainer 55 (not explicitly shown).

[0127] FIG. 6 shows another embodiment of the loading apparatus 11. Compared to the embodiments of FIGS. 2A to 3B, the magazine unit 17 of this loading apparatus 11 only includes a conveying means 19 and does not include a further conveying means 33. The product support surfaces 27 that protrude from a first run 113 of the endless member 29 form a store 31 for products 13 wherein each of the products 13 may be loaded onto a respective product support surface 27. In order to prevent the products 13 from laterally sliding off the product support surfaces 27 during the lifting, a wall member 93 is arranged opposite to the run 113. Thus, two adjacent product support surfaces 27, the run 113 and the wall member 93 form a compartment 117 for a product 13 that may additionally be closed by the blocking member 51 in the transferring direction (see FIGS. 5A and 5B).

[0128] Also in this embodiment, an entraining device 52 is provided, which, however, is arranged laterally of the product 13 lifted to the transferring height H. While this entraining device 52 is arranged laterally of the product 13 and not above the magazine unit 17, the entraining device 55 may be configured similarly to the entraining device 52 depicted in FIG. 4. Thus, the entraining device 52 also comprises an alignment means 59 with two engagement members 71 to enable the alignment of the product 13 transversely to the transferring direction T while the product 13 is transferred to the feeding unit 21.

[0129] In the schematic illustration, the entrainer 55 blocks a movement of the product support surface 27 from the transferring height H onwards to the upper deflection 79 when pointing towards the product 13, such that the entrainer 55 needs to be moved further towards or around the front deflection 63 before lifting a subsequent product 13 to the transferring height H. However, the lifting of the products 13 and the movement of the endless member 61 of the entraining device 62 may be synchronized by a common control 81, which may also ensure that the entrainer 55 reaches or passes the rear deflection 65 as soon as the next product 13 is supplied at the transferring height H. Further, it will be understood that an entraining device 52 positioned lateral of a product 13 lifted to the transferring height H may as well be positioned such that the product support surfaces 27 may pass the entraining device 52 at any position of the entrainer 55. The entraining device 52 may, in all embodiments, also comprise several entrainers 55, e.g. two entrainers 55 as shown in FIGS. 1A and 1B, that may in particular be spaced apart half the length of the endless member 61.

[0130] FIGS. 8A to 8E show a further embodiment of the slicing apparatus 15, the slicing apparatus 15 comprising a feeding unit 21 for feeding products 13 into a cutting region 23 where the products 13 are cut into slices 25, and comprising a loading apparatus 11 onto which products 13 may be loaded. The slices 25 are collected at a collecting unit 99 with a conveying means 100 for transferring the completed portions to further processing steps, e.g. to a packaging machine (see FIG. 8A and also FIGS. 1A and 1B).

[0131] The loading apparatus 11 is in principle configured as described above in conjunction with FIG. 1A to 6 and comprises a magazine unit 17 with two conveying means 19 and 33, wherein the magazine unit 17 forms a store 31 and provides a plurality of compartments 117 for products 13 to be lifted to a transferring height H at which the products 13 may be transferred to the feeding unit 21. The magazine unit 17 comprises two conveying means 19 and 33 with respective endless members 29 that endlessly circulate along a running direction R. Respective product support surfaces 27 and further product support surface 35 protrude perpendicularly from the conveying means 19 and the further conveying means 33 and a respective product support surface 27 and a corresponding further product support surface jointly form a product support 37 onto which a product 13 to be lifted may be loaded (see FIGS. 8A, 8B and 8D and also FIG. 1A to 6).

[0132] In addition, the loading apparatus 11 comprises an entraining device 52 that is configured to automatically transfer a product 13 that has been lifted to the transferring height H to the feeding unit 21. The entraining device 52 is arranged at the upper part of the loading apparatus 11 and above a product 13 at the transferring height H, similar to the illustrations of FIGS. 3A and 3B. In particular, the entraining device 52 is configured as shown in detail in FIG. 4. Hence, the products 13 only need to be loaded to the loading apparatus 11 at a convenient height, while the lifting and the transfer of the products 13 to the feeding unit 21 are carried out automatically by the loading apparatus 11 and the entraining device 52.

[0133] Respective drives and/or motors of the loading apparatus 11 and the entraining device 52 are connected with a controller 81 of the slicing apparatus 15 via cables 175, wherein the controller 81 is configured to control the feeding unit 21 and the slicing process in general, e.g. the motion of the blade 83, as well. By providing a common controller 81, the components of the slicing apparatus 15 may be synchronized in order to optimize the slicing process. Further, the controller 81 comprises a display 169 to provide information for an operator supervising the slicing process. For example, the number and/or the weight of products 13 that have already been cut into slices 25, the number of portions already produced and/or the number of products 13 to be sliced to complete a certain lot may be displayed. In addition, the display 169 may be configured as a touch screen via which the operator may enter commands regarding the slicing process. Additionally, the controller 81 includes several buttons 171 for configuring the slicing process. E.g., the number of slices 25 per portion, the thickness of the slices 25 or the weight of a portion may be settable via the controller 81. Further, the controller 81 may provide several slicing programs of which a suitable one may be chosen via the buttons and/or the touchscreen in dependence on the products to be sliced.

[0134] The feeding unit 21 of the slicing apparatus 15 comprises a moving device 145 that is configured to move the products 13 into the cutting region 23. The moving device 145 comprises a first endlessly circulating conveyor belt 147 and a second endlessly circulating conveyor belt 148, the conveyor belts 147 and 148 each forming a transport surface 149 for the products 13 that are fed into the cutting region 23 (see FIG. 8A). The conveyor belts 147 and 148 circulate in the feeding direction F, such that a product 13 that has been transferred to the feeding unit 21 is moved into the cutting region 23.

[0135] In addition, as may be seen in particular in FIG. 8A, the moving device 145 further comprises a transporting member 151 with two rotatable elements 153 that each correspond to a respective one of the first and the second conveyor belt 147 and 148. The rotatable elements 153 are configured as respective rollers that approximately laterally span the transport surface 149 provided by the conveyor belts 147 and 148 as may be seen in FIG. 8C, which shows the slicing apparatus 15 from above. The transporting member 151 and in particular the rotatable elements 153 are arranged above the transport surface 149 and the products 13 that are transported onto the transport surface 149, and the transporting member 151 and the rotatable elements 153 are configured to apply a pressure towards the transport surface 29 onto a product 13 that is fed into the cutting region 23. Thus, the product 13 to a certain extent is clamped between the rotatable elements 153 and the transport surface 149, such that a product 13 that is fed into the cutting region 23 may be stabilized in the feeding unit 21 while slices 25 are cut off the front part of the product 13 in the cutting region 23. This enables to prevent forces transmitted by the blade 83 to the product 13 from affecting the alignment of the product 13 in the feeding unit 21 and ensure that the entire product 13 is fed into the cutting region 23 in the correct alignment, which in particular may be parallel to the feeding direction F and perpendicular to a plane in which the blade 83 moves, in particular rotates. The controller 81 may also be configured to control the pressure that the rotatable elements 153 apply onto a product 13.

[0136] As can be seen in FIG. 8B, the rotatable elements 153 are drivable or rotatable via respective drive members 173. The rotatable elements 153 are connected via a belt 154, such that a synchronous rotation may be achieved. In particular, the rotatable elements 153 may be driven by a common drive and/or motor. Thus, the products 13 may jointly be fed into the cutting region 23 by the conveyor belts 147 and 148 that provide the transport surface 149 and the corresponding rotatable elements 153. In addition, the belts 154 may be used to generate a force pointing in the direction of the transport surface 149 and acting on the rotatable elements 153, such the rotatable elements 153 may apply a pressure onto a product 13 that is fed into the cutting region 23. Further, the rotatable elements 153 may be provided with a structured, in particular toothed, surface to securely engage with an upper side of a product 13 while feeding the product 13 into the cutting region 23.

[0137] Referring to FIG. 8A, the rotatable elements 153 are arranged in a respective recess 155, such that the rotatable elements 153 are movable and/or adjustable perpendicularly to the feeding direction F and in particular in the running direction R. This enables to adjust the position of the rotatable elements 153 in dependence on the size and/or the height of a certain product 13 to be fed into the cutting region 23, such that the rotatable elements 153 may be used to apply a pressure on products 13 with varying dimensions and/or heights. In particular, the rotatable elements 153 may be configured to be displaceable by a product 13 that is moved in the feeding direction F, in particular by a front end of the product 13. As such, a product 13 reaching the rotatable elements 153 may move the rotatable elements 153 upwards against the pressure applied by the rotatable elements 153, such that the rotatable elements 153 may rotate along the front side of the product 13 until reaching the upper side of the product 13. During the further feeding of the product 13, the rotatable elements 153 may provide an essentially constant pressure onto the product 13 while rotating along its upper side to stabilize the product 13 and absorb forces transmitted by the blade 83. Alternatively, the controller 81 may be configured to adjust the position of the rotatable elements 153 in the recesses 155 in dependence on the product 13 to be fed. For example, a signal of a sensor 77 of the entraining device 52 may be used to infer the height and/or size of a product 13 that has been lifted to the transferring height H and the controller 81 may be configured to adjust the position of the rotatable elements 153 accordingly.

[0138] Further, the feeding unit 21 includes a trimming cutter 159 that comprises a circular blade 161 for cutting off a part of a product 13 that is fed into the cutting region 23 (see FIG. 8A). Thus, the product 13 may be cut into several, in particular two, parts, e.g. in order to simultaneously produce several portions of slices 25. In particular, the circular blade 161 may be used to remove a part of a product 13 that is not suitable for the further processing. For example, a fat margin of a product 13 may be removed by the trimming cutter 159. As FIG. 8B shows, respective driving members 173 may be provided for the blade 161.

[0139] In order to remove such an unusable part of a product 13 that has been cut off by the blade 161, a belt transition between the first and the second conveyor belt 147 and 148 is used to form a selection gap 157 through which the removed part of a product 13 automatically falls. Below the selection gap 157, a collection area 165 with a movable box 167 is provided in order to collect the removed parts and enable an easy disposing when the box 167 is filled. By collecting the removed parts, several products 13 may be cut into slices 25 before these parts need to be disposed, such that interruptions of the slicing process due to the necessity of disposing the removed product parts may be minimized.

[0140] Further, the selection gap 157 is used as a gap for a scanning device 163 through which the scanning device 163 may analyze a product 13 that is fed into the cutting region 23. The scanning device 163 may comprise a camera and/or at least one illumination source, in particular LED, to infer the contour and/or structure of the product 13, which may be used as a quality estimator or for inferring the product weight. In addition, further cameras and/or illumination sources may be provided to determine the contour and/or structure of a front end and/or a rear end of a product 13. Thus, the entire product dimensions may be inferred and transmitted to the controller 81. While the scanning device 163 is shown below the selection gap 157, the scanning device 163 and/or components of the scanning device 163—or an additional scanning device (not shown)—may also be arranged above the product 13 for example in the region of the selection gap 157 or may be arranged such that the scanning takes place in the region of the selection gap 157.

[0141] The slicing apparatus 15 with the loading apparatus 11 constitutes a simple and compact possibility for producing slices 25 of products 13 that may easily be loaded onto the feeding unit 21 and fed into the cutting region 23. The loading apparatus 11 disclosed herein provides a simple and comfortable possibility to load products 13 onto the slicing apparatus 15 since the products 13 may be loaded onto the loading apparatus 11 at a convenient height. In particular in conjunction with the entraining device 52, a high degree of automation of the system may be achieved and interruptions of the product processing due to a lack of products 13 supplied to the slicing apparatus 15 may be prevented.

[0142] Further, the feeding unit 21 does not need to be movable, e.g. pivotable, in order to facilitate the loading of products 13, but may remain in a preset position, e.g. with an inclination of about 20° to the horizontal. This enables a simple construction of the feeding unit 21. In addition, since the loading apparatus 11 with its magazine unit 17 may provide a store 31 of products 13, the feeding unit 21 does not need to function as a product buffer, such that the length of the slicing apparatus 15 may be minimized. As can be seen in particular in FIG. 8C to 8E, the slicing apparatus 15 may also be constructed comparably narrow, thus forming a compact and easy to assemble slicing unit having a relatively small foot print. Hence, the slicing apparatus 15 provides a compact and comfortable solution to process products 13 at a high level of automation without requiring large construction spaces.

LIST OF REFERENCE NUMBERS

[0143] 11 loading apparatus [0144] 13 product [0145] slicing apparatus [0146] 17 magazine unit [0147] 19 conveying means [0148] 21 feeding unit [0149] 23 cutting region [0150] 25 slice [0151] 27 product support surface [0152] 29 endless member of the conveying means [0153] 31 store [0154] 33 further conveying means [0155] 35 further product support surface [0156] 37 product support [0157] 39 entrance side [0158] 41 exit side [0159] 43 driving means [0160] 45 further driving means [0161] 47 pressing member [0162] 49 lateral border [0163] 51 blocking member [0164] 52 entraining device [0165] 53 driving member [0166] 54 barrier [0167] 55 entrainer [0168] 57 rear end of the product [0169] 59 alignment means [0170] 61 endless member of the driving member [0171] 63 front deflection [0172] 65 rear deflection [0173] 67 pushing surface [0174] 69 rack and pinion gear [0175] 71 engagement member [0176] 73 gear wheel [0177] 75 rack [0178] 77 sensor [0179] 79 upper deflection [0180] 80 lower deflection [0181] 81 controller [0182] 83 blade [0183] 85 frame [0184] 87 pressing member of the slicing apparatus [0185] 89 pressing roll [0186] 91 lambda kinematic [0187] 93 wall member [0188] 95 conveying means of the feeding unit [0189] 97 pulley [0190] 99 collecting unit [0191] 100 conveying means of the collecting unit [0192] 101 base of the slicing apparatus [0193] 103 base of the loading apparatus [0194] 105 cutting edge [0195] 107 portion [0196] 109 fastening [0197] 111 lifting area [0198] 113 first run [0199] 115 second run [0200] 117 compartment [0201] 119 rod [0202] 120 gear wheel [0203] 121 gear wheel [0204] 123 axis [0205] 124 axis [0206] 125 arm [0207] 127 frame [0208] 129 axis [0209] 131 axis [0210] 133 guiding arm [0211] 135 driving rod [0212] 137 connection [0213] 139 structure [0214] 141 rear end of the frame [0215] 143 middle section of the frame [0216] 145 moving device [0217] 147 first conveyor belt [0218] 149 second conveyor belt [0219] 151 transport member [0220] 153 rotatable element [0221] 155 recess [0222] 157 selection gap [0223] 159 trimming cutter [0224] 161 circular blade [0225] 163 scanning device [0226] 165 collection area [0227] 167 box [0228] 169 display [0229] 171 button [0230] 173 drive member [0231] 175 cable [0232] 177 opening [0233] A arrow [0234] F feeding direction [0235] H transferring height [0236] L loading position [0237] P1 blocking position [0238] P2 release position [0239] 0 operation position [0240] R running direction [0241] S switching axis [0242] T transferring direction [0243] W path